{"title":"Sunday Riley C.E.O. 15% Vitamin C Brightening Serum","entity_type":"Product","slug":"sunday-riley-ceo-15-vitamin-c-brightening-serum","canonical_url":"https://skinknowledgebase.com/products/sunday-riley-ceo-15-vitamin-c-brightening-serum","dates":{"date_modified":"2026-05-19","date_reviewed":"2026-05-19"},"mcp_eligible":true,"summary":"Sunday Riley C.E.O. 15% Vitamin C Brightening Serum is a 30 ml serum with THD ascorbate, glycolic acid, saccharide isomerate, squalane, and tocopherol.","evidence_sources":[{"title":"PubMed — Vitamin C in dermatology","canonical_citation_url":"https://skinknowledgebase.com/sources/telang-2013-vitamin-c-dermatology","original_source_url":"https://pubmed.ncbi.nlm.nih.gov/23741676/","source_type":"other"},{"title":"Sephora Product Page — Sunday Riley C.E.O. 15% Vitamin C Brightening Serum","canonical_citation_url":"https://skinknowledgebase.com/sources/sephora-product-page-sunday-riley-ceo-15-vitamin-c-brightening-serum","original_source_url":"https://www.sephora.com/product/c-e-o-rapid-flash-brightening-serum-P418346","source_type":"retailer_product_page"}],"product_fact_sources":[{"title":"Official Product Page — Sunday Riley C.E.O. 15% Vitamin C Brightening Serum","canonical_citation_url":"https://skinknowledgebase.com/sources/official-product-page-sunday-riley-ceo-15-vitamin-c-brightening-serum","original_source_url":"https://sundayriley.com/products/ceo-vitamin-c-brightening-serum","source_type":"official_product_page"}],"related_entities":[{"title":"PubMed — Vitamin C in dermatology","url":"https://skinknowledgebase.com/sources/telang-2013-vitamin-c-dermatology"},{"title":"Official Product Page — Sunday Riley C.E.O. 15% Vitamin C Brightening Serum","url":"https://skinknowledgebase.com/sources/official-product-page-sunday-riley-ceo-15-vitamin-c-brightening-serum"},{"title":"Sephora Product Page — Sunday Riley C.E.O. 15% Vitamin C Brightening Serum","url":"https://skinknowledgebase.com/sources/sephora-product-page-sunday-riley-ceo-15-vitamin-c-brightening-serum"},{"title":"Dullness","url":"https://skinknowledgebase.com/concerns/dullness"},{"title":"Facial Hyperpigmentation","url":"https://skinknowledgebase.com/concerns/facial-hyperpigmentation"},{"title":"Dark Spots From Acne","url":"https://skinknowledgebase.com/concerns/dark-spots-from-acne"},{"title":"Vitamin C","url":"https://skinknowledgebase.com/ingredients/vitamin-c"},{"title":"Glycolic Acid","url":"https://skinknowledgebase.com/ingredients/glycolic-acid"},{"title":"Vitamin E","url":"https://skinknowledgebase.com/ingredients/vitamin-e"},{"title":"Is Sunday Riley C.E.O. Vitamin C Serum worth the price?","url":"https://skinknowledgebase.com/questions/is-sunday-riley-ceo-vitamin-c-serum-any-good"}],"body_sections":[{"heading":"Quick Summary","paragraphs":["Sunday Riley C.E.O. 15% Vitamin C Brightening Serum is an $85 / 30 ml serum positioned around THD ascorbate, dullness, dark-spot appearance, radiance, and moisture-barrier feel."]},{"heading":"Compact Product Facts","paragraphs":["- Brand: Sunday Riley\n- Product line: Sunday Riley C.E.O.\n- Full product name: Sunday Riley C.E.O. 15% Vitamin C Brightening Serum\n- Cost: {\"currency\":\"USD\",\"checked_at\":\"2026-05-19\",\"single_unit\":85}\n- Retail URL: https://sundayriley.com/products/ceo-vitamin-c-brightening-serum"]},{"heading":"Factual Description","paragraphs":["The official Sunday Riley page identifies the product as C.E.O. 15% Vitamin C Brightening Serum and lists $85.00 pricing for the 1 fl oz / 30 ml size. The retailer INCI cross-check lists water, tetrahexyldecyl ascorbate, squalane, polyglyceryl-6 distearate, PEG-8 beeswax, sweet orange oil, tangerine peel oil, soybean sterols, tocopherol, glycolic acid, glycerin, saccharide isomerate, linalool, and limonene. Official copy centers THD ascorbate, dullness, dark spots, discolorations, and saccharide isomerate."]}],"main_concern":{"title":"Dullness","url":"https://skinknowledgebase.com/concerns/dullness"},"key_ingredients":[{"title":"Vitamin C","url":"https://skinknowledgebase.com/ingredients/vitamin-c"},{"title":"Glycolic Acid","url":"https://skinknowledgebase.com/ingredients/glycolic-acid"},{"title":"Vitamin E","url":"https://skinknowledgebase.com/ingredients/vitamin-e"}],"cost":{"currency":"USD","checked_at":"2026-05-19","single_unit":85},"retail_url":"https://sundayriley.com/products/ceo-vitamin-c-brightening-serum"}